Pneumatic tire tread and buttress



FIG. 1 is a front elevation view of a pneumatic tire tread and buttress showing my new design it being understood that the pattern is repeated uniformily through the circumference of the tread and buttress; and,

FIG. 2 is a side elevational view of FIG. 1 both side views being the same.

The broken line showing of environmental structure is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a pneumatic tire tread and buttress, as shown and described. 